The PippinBukkit server is a private (whitelisted) CraftBukkit server.
We are playing on medium difficulty.
All builds are created legitimately in survival! No creative mode, no plug-ins.

Texture pack used: Sphax PureBDCraft 64x (bdcraft.net)

I decided to build a citadel where another player had left a cobblestone beacon. This was mainly for the fun of laying down rows after rows of cobblestone. The general shape of the building is pleasing, but I admit it needs more variety in the textures.
Nothing has been set up inside the building. There are no doors and no windows, as if the citadel had been carved in a single plain bloc of stone.
Scatered around the main citadel are random towers with bridges that seem to lead to other dimensions.

Additional Notes

The inspiration came from a sci-fi comic book drawn by Moebius named La Citadelle aveugle (fr.wikipedia.org/wiki/La_Citadelle_aveugle).